Prof. Gerard Sliwinski Profile

Prof. Gerard Sliwinski

Head of C3/D2 Dept at Szewalski Institute of Fluid-Flow Machinery, Polish Academy of Sciences

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Author

Publications (49)

Proceedings Article | 29 January 2019 Paper

Direct laser writing of Ag nanoparticle-composed structures in glass

N. Nedyalkov, M. Koleva, N. Stankova, R. Nikov, P. Atanasov, L. Aleksandrov, R. Iordanova, G. Sliwinski, M. Sawczak, K. Grochowska, M. Terakawa

Proceedings Volume 11047, 110470J (2019) https://doi.org/10.1117/12.2516518

KEYWORDS: Silver, Glasses, Nanoparticles, Annealing, Laser processing, Optical properties, Composites, Metals, Plasmons, Pulsed laser operation

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Proceedings Article | 22 August 2017 Paper

Organic semiconductor rubrene thin films deposited by pulsed laser evaporation of solidified solutions

N. Majewska, M. Gazda, R. Jendrzejewski, S. Majumdar, M. Sawczak, G. Śliwiński

Proceedings Volume 10453, 104532H (2017) https://doi.org/10.1117/12.2276250

KEYWORDS: Organic semiconductors, Thin films, Pulsed laser operation, Spintronics, Crystals, Thin film deposition, Raman spectroscopy

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Proceedings Article | 5 January 2017 Paper

Gold nanostructures for detection of pesticides, nitrates and drugs using Surface Enhanced Raman spectroscopy

N. Nedyalkov, Ru. Nikov, Ro. Nikov, A. Nikolov, P. Atanasov, Y. Nakajima, M. Terakawa, M. Sawczak, K. Grochowska, G. Sliwinski

Proceedings Volume 10226, 102260B (2017) https://doi.org/10.1117/12.2261674

KEYWORDS: Gold, Nanostructures, Raman spectroscopy, Nanoparticles, Nanolithography, Surface enhanced Raman spectroscopy, Glasses, Ceramics, Metals, Laser ablation

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Proceedings Article | 5 January 2017 Paper

Nanoparticle Over Mirror plasmonic structures prepared with use of Au colloid produced by laser ablation in water

Mirosław Sawczak, Marcin Zyskowski, Jakub Karczewski, Petar A. Atanasov, Nikolay N. Nedyalkov, Rumen Nikov, Nadya A. Stankova, Gerard Śliwiński

Proceedings Volume 10226, 102260G (2017) https://doi.org/10.1117/12.2261918

KEYWORDS: Gold, Nanoparticles, Aluminum, Nano opto mechanical systems, Neptunium, Absorption, Glasses, Laser ablation, Plasmonics, Scanning electron microscopy

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Proceedings Article | 8 January 2015 Paper

Pulsed laser deposition of organic semiconductor rubrene thin films

K. Grochowska, S. Majumdar, P. Laukkanen, H. Majumdar, M. Sawczak, G. Śliwiński

Proceedings Volume 9447, 94470F (2015) https://doi.org/10.1117/12.2176009

KEYWORDS: Glasses, Thin films, Raman spectroscopy, Crystals, Spintronics, Organic semiconductors, Organic materials, Pulsed laser deposition, Pulsed laser operation, Aluminum

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Proceedings Article | 8 January 2015 Paper

Laser dispersing of WC and TiC powders in light metal alloys for wear resistance enhancement

Rafał Jendrzejewski, Gerard Śliwiński

Proceedings Volume 9447, 94470G (2015) https://doi.org/10.1117/12.2176007

KEYWORDS: Particles, Toxic industrial chemicals, Aluminum, Carbon dioxide lasers, Metals, Scanning electron microscopy, Disk lasers, Resistance, Composites, Laser processing

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Proceedings Article | 8 January 2015 Paper

LIBS and Raman spectroscopic investigation of historical copper alloy objects

Iwona Żmuda-Trzebiatowska, Gerard Śliwiński

Proceedings Volume 9447, 94470D (2015) https://doi.org/10.1117/12.2178413

KEYWORDS: Copper, Raman spectroscopy, Laser induced breakdown spectroscopy, Iron, Zinc, Contamination, Lead, Spectroscopy, Tin, Chemical analysis

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Proceedings Article | 15 March 2013 Paper

Laser nanostructuring of Au/Ag and Au/Ni films for application in SERS

Ru. Nikov, N. Nedyalkov, P. Atanasov, K. Grochowska, A. Iwulska, G. Sliwinski

Proceedings Volume 8770, 87700D (2013) https://doi.org/10.1117/12.2014758

KEYWORDS: Nanostructures, Nanolithography, Metals, Thin films, Particles, Surface enhanced Raman spectroscopy, Nanoparticles, Nanostructuring, Annealing, Plasmons

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Proceedings Article | 15 March 2013 Paper

Time-resolved LIPS of molecular bands for reliable identification of calcite in historical materials

Iwona Żmuda-Trzebiatowska, Mirosław Sawczak, Panagiotis Siozos, Demetrios Anglos, Olga Kokkinaki, Gerard Śliwiński

Proceedings Volume 8770, 87700B (2013) https://doi.org/10.1117/12.2014231

KEYWORDS: Calcium, Laser induced plasma spectroscopy, Nitrogen, Calcite, Carbonates, Laser induced fluorescence, Plasma, Minerals, Raman spectroscopy, Absorption

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Proceedings Article | 15 March 2013 Paper

Structure and optical properties of TiO2 thin films prepared by pulsed laser deposition

Anna Białous, Maria Gazda, Gerard Śliwiński

Proceedings Volume 8770, 877008 (2013) https://doi.org/10.1117/12.2013426

KEYWORDS: Titanium, Protactinium, Crystals, Oxygen, Thin films, Raman spectroscopy, Pulsed laser deposition, Transmittance, Absorption, Titanium dioxide

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Proceedings Article | 13 March 2007 Paper

Laser techniques for cultural heritage research case studies

G. Sliwiński, M. Jasińska, J. Bredal-Jørgensen, A. Kamińska, K. Komar, M. Sawczak

Proceedings Volume 6604, 66040T (2007) https://doi.org/10.1117/12.726906

KEYWORDS: Calcium, Iron, Laser induced plasma spectroscopy, Aluminum, Silicon, Laser irradiation, Resistance, Spectroscopy, Scanning electron microscopy, Barium

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Proceedings Article | 23 January 2007 Paper

Langmuir probe diagnostics of plasma generated by means of pulsed Nd:YAG laser interaction with Si-based targets

Adam Cenian, Miroslaw Sawczak, Gerard Sliwinski

Proceedings Volume 6598, 65980Z (2007) https://doi.org/10.1117/12.726591

KEYWORDS: Plasma, Laser ablation, Ions, Silicon, Plasma generation, Nd:YAG lasers, Ionization, Pulsed laser operation, Diagnostics, Plasma diagnostics

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Proceedings Article | 23 January 2007 Paper

Temperature and stress fields during laser cladding of stellite protective coatings

Rafa? Jendrzejewski, Gerard Sliwiński, Marek Krawczuk, Wiesław Ostachowicz

Proceedings Volume 6598, 65980E (2007) https://doi.org/10.1117/12.726545

KEYWORDS: Cladding, Modeling, Chromium, Chemical elements, Laser applications, Laser processing, Convection, Optical coatings, Metals, Cobalt

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Proceedings Article | 12 October 2005 Paper

The effect of laser drilling on surface and material properties of AlN ceramic

N. Nedialkov, M. Sawczak, M. Jadraque, P. Atanasov, M. Martin, G. Sliwinski

Proceedings Volume 5958, 595836 (2005) https://doi.org/10.1117/12.622706

KEYWORDS: Aluminum nitride, Laser drilling, Ceramics, Aluminum, Ions, Plasma, Laser ablation, Scanning electron microscopy, Absorption, Photon transport

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For the laser drilling of aluminum nitride (AlN) ceramic the influence of the laser parameters and material properties on the drilling rate, quality of the holes and the effects related to plasma formation are investigated. The ablation is performed by pulsed irradiation of Nd:YAG laser at wavelengths of 1064, 532 and 355 nm, at pulse duration of 6 ns (FWHM) in air. The SEM scans of the processed surface reveal regular, cylindrically shaped holes of diameter of about 100 μm obtained under conditions of constant fluence at all wavelengths applied. Holes are surrounded by circular zones which are colored different than the non-processed surface, and of a much larger diameter. Comparison of the original material composition with that of the processed one made by EDX shows a decrease of the N concentration in the affected area. The zones are identified as heat-affected due to the high thermal conductivity of the ceramic material and change of the photon distribution due to multiple reflections into the material. In the LIBS spectra recorded in order to obtain the composition of the ablated material the presence of ions and neutrals depends on the laser intensity applied. At intensity values close to the ablation threshold the ejected material consists mainly of neutrals and doubling the intensity results in appearance of single-ionized Al species. The ionized species dominate over neutrals under conditions of higher drilling rate (15 GW/cm² at 532 nm). Their existence in the plasma plume together with clusters is confirmed by the TOF-MS spectra. It also corresponds to the characteristic spatial structure of the plume. The investigation of the decomposition reactions of AlN in dependence on the applied laser intensity is based on numerical solving of the three dimensional heat-transfer equation. A solution consistent with the experimental observation indicates that at threshold the ceramic decomposes into gaseous nitrogen and solid Al particulates, while at higher fluences the Al vaporizes and influences the drilling quality.

Proceedings Article | 12 October 2005 Paper

Laser cleaning of historical sandstone and the surface discoloration due to gas shielding

Marta Jankowska, Gerard Śliwiński

Proceedings Volume 5958, 59583A (2005) https://doi.org/10.1117/12.625800

KEYWORDS: Nitrogen, Statistical modeling, Laser irradiation, Data modeling, Combustion, Gas lasers, Pulsed laser operation, Laser scattering, Contamination, Oxidation

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Proceedings Article | 12 October 2005 Paper

Application of the laser spectroscopy techniques for analysis of pigments on paper

Katarzyna Komar, Gerard Śliwiński

Proceedings Volume 5958, 595839 (2005) https://doi.org/10.1117/12.625771

KEYWORDS: Laser induced plasma spectroscopy, Laser induced fluorescence, Raman spectroscopy, Titanium, Alternate lighting of surfaces, Luminescence, Aluminum, Laser spectroscopy, Barium, Sodium

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Proceedings Article | 22 April 2005 Paper

Experimental investigation of the laser cleaning effect on Gotlandic sandstone

Marta Jankowska, Gerard Sliwinski

Proceedings Volume 5830, (2005) https://doi.org/10.1117/12.618400

KEYWORDS: Scanning electron microscopy, Quartz, Surface finishing, Aluminum, Pulsed laser operation, Particles, Pollution, Laser applications, Acoustics, Polishing

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